Boiler-feeder



UNITED STATES RICHARD 'LAUCKNER OF BAY CITY,

`ASSIGNOR OF ONE-HALF TO SOPHIA JocKEN, 'oF EA'sT SAGINAW, MICHIGAN.

FEEDER.

PECIFICATION forming' part of Letters Patent No. 281,380, dated July 17, 1883.

v Application filled J-'nnuary 31, 18H3. (No model.) l

To au whom, it may concern:

' Beit known that I, RICHARD LAUCKNER, of Bay City, in the county of Bay and VState of Michigan, have invented new and useful Improvements in Boiler-Feeders 5 andIhereby declare that the followingis a full, clear, and exact description thereof, reference being had to the accompanying drawings,- which form a part of this specification. v I

The object of my invention is to construct a mechanical boiler-feeder, which, although working on a known principle of feeding, shall have such constructive merits as to render the device strictly reliable, and so simple that, should it get out of order, it can, from its very simplicity in construction and manner of operation, be easily repaired by any ordinarilyskilled mechanic; and my invention therefore consists in thearrangement and combin'ation of its various parts, all as more fully hereinafter set forth.

Figure 1 is a vertical centralsection of the device, showing all its different connections with the boiler and the source of water-supply. Fig. 2 is atop plan of one of the twolike valve-seats. Fig. 3 is a plan of one of the valvefaces.

In the accompanying drawings, A A are two rotary valvedisks attached to a common stem, B, bearing on the top lthe bevel crown-gear C, which meshes with another bevel-gear, D, and through which continuous rotary motions can be communicated to the valves A A. Each of the valves A is provided, rst, with a port, a, which leads from the face of the valve to the opposite side thereof, and the ports b c, which communicate, through a duct, d, in the body of the valve, with each other.

Interposed between the valves A A is a short cylinder, E, of larger diameter than the valves, its top and bottom having central funnelshaped depressions corresponding with the concavo-conoidal valve-faces, which are seated thereon steam and water tight. Eis provided with the inlet-coupling F, the outlet G, diametrically opposite thereto, a duct, f, connecting the port g with the outlet G, and duct h, connecting the port z' with the inlet F, and a large annular water space or passage, H, connecting with the two ports k and Z. rIhe The cylinder' v annular water space or'passage H occupies the whole interior of the cylinder E but is entirely separated from the ducts f and h by partition-walls. Vith the parts in position las shown in Fig. l, the ports gi correspond with the ports b, and the ports Z and k with the ports c.

I and I are two dome-shaped castings, each provided with-a pipe-coupling, m, and annular Vfianges n, the latter ones forming the means for fitting these domes steam-tight, one to the top and the other to the bottom side of the cylinderE. The top dome, I, is provided with a stuffing-box, o, through which the valve-stem B passes, and p is a spring by means of which the valves A are firmly held to their seats, even after considerable wear.

'K isa pipe connecting the steam-space of the boiler with the top of the device, and L is another pipe connecting the boiler, below the water-line, with the bottom of the device.

M is the water-supply pipe conducting water, under the ordinary pressure received from an-elevated tank or 'from water-mains, to the device. When in proper position, the vertical center of the device should be about on the same level with the ordinary height of water in the boiler.

In practice the valves A are Vcontinuously repower being applied to a pulley, N, which rotates the bevel-gear wheel D. A With the valves in the position shown in Fig. l, water is admitted through the pipe M into the duct h. From thence it fiows through the port i into the port b of the lower valve, then through ducts d, ports c, and the ports k into the waterspace H, lling the same up until it overflows through portsl and c, duct el, and port b of the upper valve into the duct f, and from thence continually revolving, all intercommunication between the valve and water-space H will soon be cut off completely, and retain the water which has filled into the space H until the port a of the upper valve becomes coincident with the port l, the position of the valves A being exactly the reverse of that shown in Fig. 1, and corresponding to one-half a revolution. Now,

the steam from the boiler, which is free to envolved by means of the connections described,-

into the waste-pipe G; but as the valves A are IOO 2' semen ter the dome I', finds access to the space H through the coinciding ports a l, and as the corresponding ports, a and k, are also coincident with each other, the water confined in the space H is free to iiow into the lower dome, from whence all ora certain quantity of it will pass to the boiler, according to the difference in pressure in the boiler and in the feeder. As the valves are continually rotating, the feeding process will go on continuously, and if the relative size of the feeder is properly calculated and the speed with which the device feeds is properly adjusted, it is clear that the level of water in the boiler can be maintained' have made this feature the subject of another application.

\Vhat I clailn-as my invention isl. The cylinder E and shell I I', in combil nation with the two continually-rotating twin valves A. and aseries of intercommunieating ports, whereby alternate communication is made and broken between the water-space in the cylinder, water supply and overflow, and between said water-space, steam-space, and the water-space in the boiler, whereby, first, a quanand'll', when constructed, arranged, and operating substantially as and for the purpose specijiied.

RICHARD LAUGKNER.

Witnesses H. S. SPRAGUE, E. SCUL'LY. 

